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Submitted by dragonmaster93m on Wed, 2012-01-25 22:13
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Two ships leave port at the same time. Ship A sails north at a speed of 30 mph while ship...

Two ships leave port at the same time. Ship A sails north at a speed of 30 mph while ship B sails east at a speed of 55 mph.
(a) Find an expression in terms of the time t (in hours) giving the distance between two ships.

Answer
Submitted by Kumail Raza on Fri, 2012-06-08 05:37
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xxxxxx

xxxxxxxxxxxxxxxxxxxx
Data: x
Speed of ship Axxxxx
Speed xx xxxx x55 mph
30 t xx
b xx tx
xxxxxxxxx
In general speed = distance x time xxx
xxxxxxxxxx distance covered xx xxxxx direction = xxx
xxx distance covered xx xxxx direction = 55t
We xxx xxxx the distance xxxxxxx point a and c by xxxxx xxxxxxxxxx xxxxxx
Hypotneuse(h)2 x xxxxxxxx + perpendicular (p)2
xxxxxxxx xxxxxxx A and x = xx = xxxx x xxxx
xxxxxxxxxxxxxxx
xx = xxxx x h2
x x SQRT(3925 x xxx

xxxxxx

Sheet3


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Submitted by shahimermaid on Thu, 2012-01-26 00:09
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Two ships xxxxx xxxx xx xxx xxxx time. xxxx A sails xxxxx xx x speed xx xx xxx while xxxx x sails xxxx xx a xxxxx xx xx mph. (a) xxxx an xxxxxxxxxx xx xxxxx xx the xxxx t xxx hours) giving xxx xxxxxxxx between xxx xxxxxx

xxxxxxxxx (55mph)

xxxxxxxxx North xx xxxx

xx one hour x the east xxxx xxxx xxxxx xx miles xxx xxx xxxxx xxxx will cover 30 xxxx

xxxx is a xxxxx xxxxxx triangle xx

h2 = xx x xx

h = √ xxx x xxx

x x √ xxx x xxxxx √xxxx = 62.65 xxxxx


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Answer
Submitted by Pooja6666 on Sat, 2012-06-16 06:17
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xxx ships leave port xx xxx xxxx time. Ship A xxxxx north at x speed xx xx xxx xxxxx xxxx B xxxxx east at a xxxxx xx xx mph. (a) xxxx an xxxxxxxxxx xx xxxxx of the time t xxx xxxxxx xxxxxx xxx distance xxxxxxx two ships.

x

xxxx A

xx xxx x = sqrt xxxx x B^2)

x

B E

Ship x – 55 mph x

xx time t (hours) Ship x xxxx xxxxx the distance A = speed xx xxxx A x time x xxxx xxxxx

And xxxx B xxxx the cover xxx distance xx time t x B = speed of xxxx x x time x 55 * x xxxxx

xx xxxxxxxxx xxxxx distance A and distance x are two xxxxx xx xxxxxxxx with xxxxx xx degree

This distance between xxxx xxxx be x

xxx = xxx x xxx = (30*t)^2 + (55*t)^2 x 30^2 * xxx x 55^2*t^2 = xxxxxxx + 55 x t^2 x xxxx xxxx + xxxxx = xxx x 3925

x = Sqrt (t^2 x 3925) x x * xxxx xxxxxx x x x sqrt xxx x 25 * 55) x 25 * t * xxxx 55= 25 x 7.42 * t = xxxxx * t

xx xxxxx t hours, distance xxxxxxx xxx xxxxx will be xxxxx * t xxxxx


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Answer
Submitted by apurva.tripathi2010 on Fri, 2012-02-17 16:48
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62.649 * t mile. Where 't' is time in Hrs.

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